Apparatus for deaerating sirup



June 4, 1940. J. KANTOR APPARATUS FOR DEAERATING S IRUP Filed March 2, 1938 INVENTOR. fluid/' ATTORNEYs.

Patented June 4, 1940 PATENT OFFICE APPARATUS ron DEAERATING snwr James Kantor, Chicago, Ill., assignor to The Liq uid Carbonic Corporation, Chicago, 111., a corporation of Delaware Application March 2,1938, Serial No. 193,419

' 1 Claim.

My invention relates to improvement in means for deaerating sirups used in the manufacture of carbonated beverages.

In the manufacture of carbonated beverages,

| usually a flavored sirup of a predetermined quantity is deposited in the bottle, afterwhich the bottle is filled with carbonated water. The presence of air in the sirup causes numerous disadvantages. In the first place, one of the chief 1. causes of spoilage of carbonated beverages is the presence of air in the sirup. Furthermore, the presence of air in the sirup causes a foaming or frothing of the sirup when it is initially'deposited in the bottle and also causes a foaming or II ,frothing of the contents of the bottle when the bottle is filled with carbonated water after the deposit of sirup therein. Such foaming or frothing seriously interferes with the filling of the bottle and with the proper operation of the mao chine in various ways.

It is one of the objects of my invention to, as far as possible, remove the air from the sirup prior to its delivery into the bottle.

For the purpose of disclosing my invention, I

5 have illustrated an embodiment thereof in the accompanying drawing, in which,

The figure is a schematic view of an apparatus embodying my invention.

Referring to the figure, I have illustrated at I 30 an ordinary siruper of the type which is now commercially used for depositing a measured quantity of sirup into the bottle. This siruper generally includes a rotatable tank adapted to contain the sirup which tank is provided with 35 an annular well 2 having arranged therein the siruping stems or tubes 3. These siruping tubes have associated therewith the measuring cup 4 and a bottle bell 5, the arrangement being such that when the bell seats itself on the bottle, the

o stem 3 is projected into the bottle and the cup is raised to a position wherein a measured quantity of liquid contained therein will flow into the bottle. More detailed description of this structure is not believed to be necessary as the'same 45 is fully disclosed in the patent to Miller, No.

1,711,361, dated April 30, 1929.

Arranged to supply the siruping machine with sirup is a storage tank 6 communicating with the siruper I through the medium of the feed pipe I.

50 A control valve 8 is placed in thispipe for controlling the flow of sirup from the tank 6 into the siruper. This tank is supplied 'with sirup from a suitable source of supply through the inlet pipe 9 having a control valve Ill therein. The

55 tank, at its upper end, is provided. with a hollow preferably cone-shaped baflle- H, having a water chamber l2 into which water is admitted from a cold water supply by pipe l3 having a control valve H. An overflow l5 for the chamber communicates with an overflow pipe I6 having a 5 control valve II. This baflie is arranged beneath a delivery nozzle l8 extending through the top of the tank and connected by a pipe It with a circulating pump 2|! which, in turn, is connected with the delivery pipe 1, above the valve 10 8, by a pipe 2|. A'valve 22 is arranged within the pipe 2| for controlling the flow of sirup to the circulating pump 20.

The tank 6 is sealed against the ingress of air, by the sealing cover 23 and is connected by the pipe 24 with a vacuum pump 25. The top of this tank is also connected through a pipe 26 with a source of supply of carbon dioxide 21 and arranged in this conduit 26 is a control valve 28. The source of supply 21 of the carbon dioxide is also connected through the medium of the pipe 29 with the top of the siruping tank through a water sealed coupling 30, a suitable valve 3| being placed in this pipe for controlling the flow of carbon dioxide to, the tank. This valve, as well as the valve 28, may be of the reducing type to control not only the admission of carbon dioxide to the different tanks but also to regulate the pressure thereof.

In operation, the sirup is flowed into the tank 30 6 from the supply pipe 9 until the tank. has received the desired quantity; Preferably, the level of the sirup is maintained at or is not permitted to rise above the point 32 as indicated in the drawing. After the'sirup has been admitted into the tank, the supply pipe valve is shut ofi and by opening the valve 22 and operating the circulating pump 20, the sirup is removed from the bottom of the tank and discharged through the top thereof over the battle II-. This 40 spreads the sirup into a thin film, cooling it at the same time, and with the vacuum producing pump 25 operating, the air from the tank 6 is exhausted; it being understood that the valve 8 is in a, closed position. The vacuum producing pump-exhausting the air from the tank also exhausts the air from or deaerates the sirup in the tank and this deaerating process isaccelerated due to the fact that the syrup is flowing in a thin cooled film over the baffle ll. After the vacuum producing pump has been operated for a suflicient length of time, this pump is stopped and the vacuum in the tank is broken by the admission into the topthereof of a suitable supply of C0: under predetermined pressure so that 55 the flow or the sirup will be permitted through the pipe 1. Due. to the fact that the vacuum is broken by the admission of 002, there will be no danger of the sirup again absorbing air. Furthermore, the tank of the siruper I is provided with an atmosphere of CO2 above the sirup level and this atmosphere is preferable maintained at atmospheric pressure. The pressure of the CO2 in the tank 6 above the liquid level may also 10 be maintained at atmospheric or slightly above atmospheric pressure so that the sirup will flow freely into the tank when the valve 8 is opened. I claim as my invention: An apparatus for deaerating sirup comprising 15 in combination a tank adapted to contain the sirup. a hollow filming plate, arranged in said tank near the top thereof, means for circulating a cooling medium through said'hollowplate. a circulating pump having its intake side connected to the bottom of the tank and its delivery side-connected to the top of said tank above said filming plate and adapted to deliver the sirup over said plate into said tank, means for creating a. sub-atmospheric pressure insaid tank during the circulation of the sirup through said tank for removing the air from said sirup and means for admitting C02 to the top of said tank for breaking said sub-atmospheric pressure when it is desired to withdraw the contents of the tank therefrom.

JAMES KANTOR. 

